JP2014233603A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an absorbent article enabling a user to simply fold without touching a part of a liquid permeable sheet to which body fluid is adhered at the time of disposing.SOLUTION: An absorbent article includes: a liquid impermeable sheet 2; a liquid permeable sheet 3 arranged on one side of the liquid impermeable sheet 2; a pair of cylindrical parts 5 and 6 arranged between the liquid impermeable sheet 2 and the liquid permeable sheet 3, including an absorber 4 long in one direction, and extending in the lengthwise direction of the absorber 4 along both sides in the width direction of the absorber 4; and a pair of string-like members 7 and 8 inserted into the pair of cylindrical parts 5 and 6 and extending in the lengthwise direction of the cylindrical parts 5 and 6. Both ends of the pair of string-like members 7 and 8 are each fastened to both ends in the lengthwise direction of the inserted cylindrical parts 5 and 6, and parts excluding both ends in each of the string-like members 7 and 8 are freely drawn to the outside of the cylindrical parts 5 and 6 through lead-out holes 21 and 22 provided on the peripheral surface of the cylindrical parts 5 and 6.

Description

  The present invention relates to absorbent articles such as sanitary napkins, origami sheets, disposable paper diapers, and incontinence pads, and more particularly, to absorbent articles that can be easily folded when discarded. .

For example, an absorbent article such as a sanitary napkin that absorbs bodily fluids such as menstrual blood includes a liquid-permeable sheet (so-called top sheet) located on the user's skin side and a liquid-impermeable sheet located on the underwear side ( In general, a so-called back sheet) and an absorber provided between the liquid-permeable sheet and the liquid-impermeable sheet are provided.
In such an absorbent article, the surface of the liquid permeable sheet side is exposed in consideration of hygiene in order to prevent body fluid adhering to the liquid permeable sheet from adhering to other parts after use. It is normal to fold it up and discard it.

Regarding folding of the absorbent article to be discarded, as described in Patent Document 1, for example, one end side is fixed to the absorbent body and the other end side is liquid between the liquid-permeable sheet and the liquid-impermeable sheet. A configuration in which a strip-like strip led out of an impermeable sheet is provided is known.
In the absorbent article of Patent Document 1, the absorbent body is bent together with the liquid-permeable sheet and the liquid-impermeable sheet in an accordion shape by pulling the lead-out portion of the strip at the time of disposal, thereby reducing the entire absorbent article. It can be folded.

  However, in the case of the thing of the said patent document 1, when pulling the said strip, since it is necessary to hold a napkin with one hand, there exists a possibility that a hand may touch the part to which the body fluid adhered in the liquid-permeable sheet. There was a problem that it was unfavorable for hygiene.

  Further, in Patent Document 2, a continuous bag-shaped member is provided on the outer peripheral portion of the absorber, and the string-shaped member is inserted into the bag-shaped member, and both ends of the string-shaped member are connected to the both ends. Describes an absorbent article having a configuration led out of the bag-like member in a state of facing each other.

In the case of the absorbent article described in Patent Document 2, the entire absorbent article can be folded only by pulling the string-like member, but in order to fold the absorbent article until the liquid-permeable sheet is not exposed to the outside. Needs to pull out the string-like member for a considerable length. That is, in the case of the absorbent article of Patent Document 2, since the bag-like member is continuously provided so as to surround the outer periphery of the absorbent body, each end of the string-like member is the product length of the absorbent article ( Unless it is pulled out to the same extent as the length in the length direction), it cannot be folded down to a desired form, that is, a state where the liquid-permeable sheet is not exposed to the outside.
Therefore, the sum of the pull-out lengths of both ends of the string-like member reaches about twice the product length of the absorbent article, and the operability is poor. Since it is troublesome and troublesome, the convenience during folding is impaired.

JP 2007-202790 A JP 2007-82595 A

  The technical problem of the present invention is to provide an absorbent article that can be easily folded without touching the part of the liquid-permeable sheet to which the body fluid is adhered.

  In order to solve the above problems, an absorbent article of the present invention includes a liquid-impermeable sheet, a liquid-permeable sheet disposed on one surface side of the liquid-impermeable sheet, and these liquid-impermeable sheets. An absorbent article provided with an absorbent body that is long in one direction and is disposed between the liquid-permeable sheet and each of the absorbent bodies in the longitudinal direction along both sides in the width direction of the absorbent body. And a pair of string-like members extending in the length direction of the cylindrical part, the pair of string-like members extending at both ends. The portions are fixed to both end portions in the length direction of the inserted tubular portion, and portions other than both end portions in each of the string-like members are provided on the peripheral surface of the tubular portion. It can be pulled out to the outside of the cylindrical portion through the lead-out hole.

In this invention, the said cylindrical part shall be arrange | positioned by the surface side in which the said liquid permeable sheet in the said liquid impermeable sheet | seat was arrange | positioned.
Furthermore, in the present invention, the lead-out hole may be disposed on the surface of the liquid impermeable sheet that is opposite to the surface on which the liquid permeable sheet is disposed.

Furthermore, in the present invention, the absorbent article includes a wing portion that extends outward from each side portion and is fixed to clothing during use on both side portions in the width direction. At least a part of the cylindrical portion may be formed within a range along the base end side of the wing portion.
In this case, the lead-out hole has a length in the length direction that is longer than a length in a direction along the length direction of the absorber on the base end side of the wing portion. it can.
Alternatively, the lead-out hole may be formed so that the length in the length direction is less than the length in the direction along the length direction of the absorber on the base end side of the wing portion.

In the present invention, the absorber has a front region, a central region, and a rear region that are continuously provided in the length direction, and the central region of these regions has a bending rigidity higher than that of other regions. Can be formed high.
Furthermore, in the present invention, the absorber may have a bending inducement portion extending in the width direction that induces bending in the length direction of the absorber.

According to the present invention, the entire absorbent article can be folded simply by pulling out a pair of string-like members inserted into the inside of the pair of cylindrical portions respectively extending in the length direction of the absorbent body through the outlet holes to the outside of the cylindrical portion. Therefore, the liquid permeable sheet can be folded without touching the part to which the body fluid is attached.
The pair of string-like members are provided on the peripheral surface of the cylindrical portion except for both ends of each string-like member, with both ends fixed to both ends in the longitudinal direction of the cylindrical portion. The lead-out length of each string-like member can be significantly reduced compared to the conventional case, and the entire absorbent article can be easily folded in a short time. is there.

FIG. 1 is a plan view schematically showing a first embodiment of an absorbent article according to the present invention. 2 is a cross-sectional view taken along the line A-A 'of FIG. FIG. 3 is an enlarged cross-sectional view of the main part of FIG. FIG. 4 is a schematic plan view for explaining a part of the manufacturing process of the absorbent article according to the first embodiment. FIG. 5 is an enlarged cross-sectional view of (a) B-B ′ in FIG. 4 and (b) an enlarged cross-sectional view of C-C ′. FIG. 6 is a perspective view schematically showing a stage in the middle of folding the absorbent article. FIG. 7 is a front view schematically showing a state in which the absorbent article has been folded more than FIG. 6. FIG. 8 is a front view schematically showing a state in which the folding of the absorbent article is further advanced than in FIG. FIG. 9 is a plan view schematically showing a second embodiment of the absorbent article according to the present invention. FIG. 10 is a bottom view of the same. 11 is a cross-sectional view taken along the line D-D 'of FIG. 12 is an enlarged cross-sectional view of the main part of FIG. FIG. 13: is a top view which shows typically 3rd Embodiment of the absorbent article which concerns on this invention. FIG. 14 is a plan view schematically showing a fourth embodiment of the absorbent article according to the present invention. FIG. 15 is a cross-sectional view schematically showing still another embodiment of the absorbent article according to the present invention.

  1 to 8 show a first embodiment of an absorbent article according to the present invention, and this first embodiment employs a sanitary napkin as the absorbent article.

That is, the absorbent article 1A of this embodiment includes a liquid-impermeable sheet 2, a liquid-permeable sheet 3 disposed on one surface side of the liquid-impermeable sheet 2, and these liquid-impermeable sheets. 2 and a liquid-permeable sheet 3 and a strip-shaped absorber 4 that is long in one direction.
Further, a pair of left and right cylindrical portions 5 and 6 provided on both sides in the width direction of the absorber 4 and a pair of string-like members 7 and 8 respectively inserted into the pair of cylindrical portions 5 and 6. And have.
Further, a pair of side sheets 9 and 10 respectively disposed on both sides of the absorber 4 are attached to the surface of the liquid impermeable sheet 2 where the liquid permeable sheet 3 is disposed. .

In this embodiment, the absorbent article 1 </ b> A is connected to a main body 11 in which the absorbent body 4 is disposed and is long in the length direction of the absorbent body 4, and both sides in the width direction of the main body 11. In addition, a pair of wing portions 12 and 13 that are fixed to the underwear during use are integrally provided.
The body portion 11 is attached to the skin side of the user in the crotch portion of the underwear, absorbs and holds body fluid such as menstrual blood, and a part of the liquid-impermeable sheet 2 and liquid permeability. The sheet 3, the absorbent body 4, a part of the side sheets 9 and 10, the cylindrical portions 5 and 6, and the string members 7 and 8 are included.

On the other hand, the pair of wing portions 12 and 13 extend outward from both side portions in the width direction of the main body portion 11, and a part of the liquid-impermeable sheet 2 and the side sheets 9 and 10. At the time of use, it is folded back to the outer surface side of the crotch portion of the underwear and then stuck to the outer surface to prevent the position shift and twist of the main body portion 11.
In this embodiment, the pair of wing portions 12 and 13 are provided so as to project in opposite directions at the substantially central portion of the main body portion 11 in the length direction. Each of the wing portions 12 and 13 is formed to be long in the same direction as the length direction of the main body portion 11, and is connected to the main body portion 11, that is, from the proximal end side to the distal end side. Therefore, it is an aspect of a substantially trapezoidal shape in plan view that gradually tapers.

The main body portion 11 and the pair of wing portions 12 and 13 are provided on the surface of the liquid impermeable sheet 2 opposite to the surface on which the liquid permeable sheet 3 is disposed, that is, on the surface side in contact with the undergarment. Adhesive members 14 to 16 for attaching the main body portion 11 and the pair of wing portions 12 and 13 to the crotch portion of the underwear are respectively disposed.
Examples of the pressure-sensitive adhesive used as the pressure-sensitive adhesive members 14 to 16 include a styrene-ethylene-butylene-styrene block copolymer, a styrene-butylene polymer, a styrene-butylene-styrene block copolymer, and a styrene-isobutylene-styrene copolymer. Styrenic polymers such as polymers; tackifiers such as C5 petroleum resins, C9 petroleum resins, dicyclopentadiene petroleum resins, rosin petroleum resins, polyterpene resins, terpene phenol resins; trifresyl phosphate, dibutyl phthalate, Monomer plasticizers such as dioctyl phthalate; polymer plasticizers such as vinyl polymers and polyesters.
In this embodiment, the pressure-sensitive adhesive members 14 to 16 each have a mode using a single band-shaped pressure-sensitive adhesive sheet extending along the length direction of the absorbent article. The adhesive member may be a mode in which a plurality of small pieces of adhesive sheets extending along the length direction of the absorbent article are arranged at equal intervals in the width direction of the absorbent article.

The liquid-impermeable sheet 2 is provided on the user's underwear side (the lower surface side of the absorbent body 4 in FIGS. 2 and 3) in the absorbent article 1A to prevent permeation of the discharged body fluid. It is intended to prevent leakage into underwear or the like, and is a plan view shape in which the main body portion 11 and the pair of wing portions 12 and 13 are integrally formed (that is, substantially the same shape as the plan view shape of the absorbent article). ).
Examples of the liquid-impermeable sheet 2 include a waterproof nonwoven fabric, a synthetic resin (eg, polyethylene, polypropylene, polyethylene terephthalate, etc.) film, a composite sheet of a nonwoven fabric and a synthetic resin film (eg, spunbond, spunlace, etc.). Composite film in which a breathable synthetic resin film is bonded to a non-woven fabric), an SMS non-woven fabric in which a melt-blown non-woven fabric having high water resistance is sandwiched between strong spunbond non-woven fabrics, and the like can be used.

Further, the liquid permeable sheet 3 comes into contact with the user's skin, quickly absorbs the body fluid from the user, and shifts to the absorber 4.
The liquid-permeable sheet 3 is formed of, for example, a nonwoven fabric, a woven fabric, a synthetic resin film having liquid-permeable holes, a net-like sheet having a mesh, or the like, and the surface side of the absorbent body 4 facing the user's skin. (In FIG.2 and FIG.3, it arrange | positions in the upper surface side of the absorber 4).

  When a nonwoven fabric is used as the liquid permeable sheet 3, examples of the nonwoven fabric include natural fibers (for example, wool and cotton), regenerated fibers (for example, rayon and acetate), and inorganic fibers (for example, glass fibers and carbon fibers). ) Synthetic resin fibers (for example, polyethylene, polypropylene, polybutylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ionomer resin, polyolefin; polyethylene terephthalate, polybutylene terephthalate) , Polyesters such as polytrimethylene terephthalate and polylactic acid; polyamides such as nylon) and the like. Non-woven fabrics include core / sheath fibers, side-by-side fibers, island / sea fibers, etc .; hollow fibers, flat fibers, Y-shaped fibers, C-shaped fibers, etc., latent crimps or manifestations Crimped three-dimensional crimped fibers; split fibers that are split by a physical load such as water flow, heat, and embossing may be mixed.

Further, the absorbent body 4 absorbs and retains body fluid such as menstrual blood of the user, includes pulp and a water-absorbing polymer, and has an outer peripheral surface covered with a non-woven fabric covering sheet (not shown). ing.
The absorbent body 4 includes a central region 17 corresponding to a central portion in the length direction, which is a portion to which body fluid such as menstrual blood from the user is supplied most, and a user's adjoining the central region 17. A front region 18 extending in the front direction and a rear region 19 adjacent to the central region 17 and extending in a direction opposite to the front region 18 are provided continuously and integrally in the length direction of the absorber 4. Yes.
In addition, the center area | region of the said absorber 4 can be each set to about 60 mm (120 mm in total) in the front-back direction, for example from the assumed position facing the vaginal opening at the time of use. In this embodiment, among the embosses 24a to 24d to be described later, the front side substantially semicircular emboss 24d located at the approximate center in the width direction of the absorber 4 and the rear side substantially semicircular shape in plan view. The region between the embossed portion 24d and the embossed portion 24d is the central region, the front side embossed 24d to the front side region of the absorber 4 is the front region 18, and the rear side embossed 24d to the rear side region of the absorber 4 is the rear region 19. It is said.

  In the present invention, the pulp that forms the absorber 4 is, for example, wood pulp obtained from coniferous or hardwood (for example, mechanical pulp such as groundwood pulp, refiner ground pulp, thermomechanical pulp, chemithermomechanical pulp; craft; Pulp, sulfide pulp, chemical pulp such as alkali pulp; semi-chemical pulp, etc.); mercerized pulp or crosslinked pulp obtained by chemically treating wood pulp; bagasse, kenaf, bamboo, hemp, cotton (for example, cotton linter), etc. Non-wood pulp; Regenerated cellulose such as rayon and fibril rayon; Semi-synthetic cellulose such as acetate and triacetate, etc. are mentioned, but pulverized pulp is preferred because it is low in cost and easy to mold.

  On the other hand, as the water-absorbing polymer forming the absorbent body 4 in the present invention, for example, polyacrylate, polysulfonate, maleate anhydride, polyacrylamide, polyvinyl alcohol, polyethylene oxide, Superabsorbent polymers (SAP), such as aspartate, polyglutamate, polyalginate, starch, and cellulose, are included. Among these, polyacrylate (especially, polyacrylate) A highly water-absorbing resin (sodium acrylate type) is preferred.

Further, the pair of side sheets 9 and 10 prevent body fluid from the user from leaking outward from both sides in the width direction of the absorbent article 1 </ b> A, and the width direction of the absorber 4 in the main body 11. It is arrange | positioned at both sides, respectively. Further, at least a part of each of the side sheets 9 and 10 covers both sides of the liquid permeable sheet 3 in the width direction, and the pair of wing parts 12 in the liquid impermeable sheet 2. , 13 is covered with the surface on the liquid-permeable sheet side.
The pair of side sheets 9 and 10 preferably have hydrophobicity or water repellency so as to prevent leakage of bodily fluids. For example, the pair of side sheets 9 and 10 is made of a material such as a spunbond nonwoven fabric, an SMS nonwoven fabric, or an air-through nonwoven fabric. be able to.

Further, the liquid-permeable sheet 3 and the pair of side sheets 9 and 10 are provided with a seal portion 20 provided along the outer peripheral edge of the liquid-impermeable sheet 2 (that is, substantially the outer peripheral edge of the absorbent article). Are joined to the liquid-impermeable sheet 2, respectively.
In addition, as a joining mode by the said seal part 20, various methods, such as embossing, welding by an ultrasonic wave, adhesion | attachment using a hot-melt-type adhesive agent, can be used, for example. Or in order to raise joining strength, you may combine two or more types of joining forms, such as giving embossing after joining by a hot-melt-type adhesive agent, for example.

The pair of cylindrical portions 5 and 6 extend in the length direction of the absorber 4 along both sides in the width direction of the absorber 4, and the pair of cylindrical portions 5 , 6 extend substantially parallel to each other up to both ends in the length direction of the main body 11 at the respective arrangement positions.
The cylindrical portions 5 and 6 are hollow ones formed separately from each other, and are large enough not to prevent the inserted string-like members 7 and 8 from moving in the length direction. Internal spaces 5 a and 6 a having a length extend along the length direction of the absorber 4.
In addition, the pair of cylindrical portions 5 and 6 are formed of a flexible material such as a nonwoven fabric, and the absorptive properties of the absorbent article 1A (more specifically, the main body portion 11) are not hindered. It can be bent and deformed integrally with the article 1A.

In this embodiment, the pair of cylindrical portions 5 and 6 are formed by a part of the pair of side sheets 9 and 10, respectively.
Specifically, the end on the absorber side in the width direction of each of the side sheets 9 and 10 is folded back, and the tip of the folded portion is used for the original side sheets 9 and 10 using a hot melt adhesive. A pair of cylindrical portions 5 extending in the lengthwise direction of the side sheets 9 and 10 are formed into hollow cylindrical shapes by bonding by appropriate means such as bonding, embossing, and ultrasonic welding. , 6. Therefore, on the side of the liquid impermeable sheet 2 where the side sheets 9 and 10 are disposed, that is, on the side of the surface facing the user's skin where the liquid permeable sheet 3 is disposed. A pair of cylindrical parts 5 and 6 will be formed.
Moreover, as shown in FIG.2 and FIG.3, as for a pair of said cylindrical parts 5 and 6, the cross-sectional shape of each width direction becomes a flat shape long in the width direction of 1 A of absorbent articles, The cylindrical parts 5 and 6 are in an aspect that does not hinder the flexibility and thinness of the entire absorbent article.

On the other hand, the pair of string-like members 7 and 8 perform operations related to folding of the absorbent article 1A when the absorbent article 1A is discarded.
That is, the pair of string-like members 7 and 8 extend in the length direction of the respective cylindrical portions 5 and 6 through which the pair of string-like members 7 and 8 are inserted, and do not hinder bending and deformation of the entire absorbent article. Yarn formed of, for example, cotton, polyester, polyester / rayon blend, polypropylene, etc., having a degree of flexibility and a strength that cannot be broken by hand when the absorbent article 1A is folded. Can be twisted together.
The pair of string-like members 7 and 8 are formed to have a size substantially the same as the length in the length direction of the cylindrical parts 5 and 6, respectively. The portions are fixed to both ends in the length direction of the tubular portions 5 and 6 through which the respective string-like members 7 and 8 are inserted, while the other portions are the tubular portions 5 and 6. The interior spaces 5a and 6a are movable.

Further, in this embodiment, each of the string-like members 7 and 8 is in the internal spaces 5a and 6a of the cylindrical portions 5 and 6 in which the cross-sectional shape in the width direction is formed flat as described above. The string-like members 7 and 8 are arranged in a state of being offset toward the end portion in the width direction located on the side opposite to the absorbent body 4, and both end portions in the length direction are in this state. It is fixed to the cylindrical part.
Fixing the end portions of the string-like members 7 and 8 to the cylindrical portions 5 and 6 can be performed by various means such as adhesion with an adhesive such as a hot-melt adhesive, embossing, and ultrasonic welding. it can.

In the case of this embodiment, two fixing methods are used in combination for fixing the end portions of the string-like members 7 and 8 to the cylindrical portions 5 and 6.
That is, as a first fixing method, a hot melt adhesive that is applied to the webs 101 and 102 to be the side sheets 9 and 10 for bonding the series of cords 111 and 112 in the manufacturing process of the absorbent article described later. A method of directly fixing by bonding with 109 and 110 is used. In the manufacturing process of the absorbent article 1A, when finally cut into the outer shape of the absorbent article 1A as a product, the series of strings 111 and 112 were bonded with hot-melt adhesives 109 and 110, respectively. Since it cut | disconnects in a part, as a result, the both ends of the string-like members 7 and 8 will be in the state fixed to the cylindrical parts 5 and 6. FIG.
As a second method, the liquid-permeable sheet 3 and the pair of side sheets 9 and 10 are provided along the outer peripheral edge of the liquid-impermeable sheet 2 when the liquid-impermeable sheet 2 is joined. A method of fixing by the above-described seal portion 20 is used. That is, when the portion of the side sheets 9, 10 forming the main body 11 is joined to the liquid-impermeable sheet 2, the sheet-like members 7, 8 are joined by the seal 20 together with the joining of the sheets. The cylindrical portions 5 and 6 at both ends are fixed to both ends.

Here, the string-like members 7 and 8 inserted through the cylindrical portions 5 and 6 on the liquid-permeable sheet 3 side of the liquid-impermeable sheet 2 are provided on the peripheral surfaces of the pair of cylindrical portions 5 and 6. Are provided in the cylindrical portions 5 and 6, respectively. Thereby, through these lead-out holes 21, 22, portions other than both end portions of the respective string-like members 7, 8 can be freely pulled out to the outside of the respective cylindrical portions 5, 6.
Then, by pulling out and pulling the string-like members 7 and 8 from the lead-out holes 21 and 22, the absorbent article 1 </ b> A, more specifically, both end portions in the length direction of the main body portion 11 are led-out holes 21. , 22 can be drawn.

  Specifically, by pulling the string members 7 and 8 respectively, both end portions of the string members 7 and 8 are pulled in the direction of the outlet holes 21 and 22 through the inside of the cylindrical parts 5 and 6. As a result, the absorbent article 1 </ b> A, more specifically, both end portions in the length direction of the main body portion 11 are drawn toward the outlet holes 21 and 22. Thereby, while the part of the both ends side of the length direction of the said main-body part 11 overlaps each other, while concealing the said liquid-permeable sheet side of this main-body part 11, the absorbent article 1A whole will be folded. .

In the case of this embodiment, the lead-out holes 21 and 22 are respectively disposed within the ranges along the base end sides of the wing portions 12 and 13 in the cylindrical portions 5 and 6. Accordingly, the string-like members 7 and 8 are made to correspond to the base end portions of the wing portions 12 and 13 in the cylindrical portions 5 and 6, that is, the substantially central portion in the length direction of the main body portion 11 or the portion thereof. In the vicinity, it is possible to draw out the approximate center portions of the string-like portions 7 and 8 in the length direction with fingers.
In addition, the lengths of the lead-out holes 21 and 22 in the length direction of the cylindrical portions 5 and 6 are formed so that the length in the length direction is less than the length in the length direction of the base end portions of the wing portions 12 and 13. It has a long hole shape having a predetermined size.
Further, the lead-out holes 21 and 22 are end portions in the width direction located on the opposite side to the absorber 4 in the cylindrical portions 5 and 6 in which the cross-sectional shape in the width direction is formed flat as described above. The string-like members 7 and 8 are easily pulled out toward the extending direction of the nearest wing portions 12 and 13.

  As described above, the lead-out holes 21 and 22 are formed in a range along the base end side of the wing portions 12 and 13 in the cylindrical portions 5 and 6, of the main body portion 11 of the absorbent article 1 </ b> A. The other part is drawn in the direction of the part near the wing part on the liquid permeable sheet side that absorbs and holds a lot of body fluid, and the part near the wing part on the liquid permeable sheet side is covered. It is to do.

In general, a sanitary napkin having a wing portion is provided with wing portions on both sides in the width direction of a portion corresponding to a portion to which menstrual blood from a user is supplied most, and the sanitary napkin is used as an underwear by these wing portions. It is designed to prevent it from shifting or twisting from the crotch. For this reason, it is considered that the main body of the absorbent article has the most menstrual blood adhering to the liquid-permeable sheet side portion near the wing, and when the used absorbent article is discarded, the menstrual blood It is important to fold so that the part to which is attached cannot be seen.
Therefore, in this embodiment, the lead-out holes 21 and 22 are formed in a range along the base end side of the wing parts 12 and 13 in the cylindrical parts 5 and 6, and the string-like member 7 is formed at that position. , 8 can be pulled out, and the portions on both ends in the longitudinal direction of the main body portion 11 are drawn toward the portion near the wing portion so that the liquid-permeable sheet side near the wing portion can be covered.

In addition, the reason why the length in the length direction of the lead-out holes 21 and 22 is less than the length in the length direction of the base end portions of the wing portions 12 and 13 is to fold the entire absorbent article 1A as compactly as possible. To be able to do that.
Specifically, in the absorbent article 1A, the portions that are drawn toward the lead-out holes 21 and 22 by pulling out the cord-like members 7 and 8 from the lead-out holes 21 and 22 are the string-like members 7 and 8. Deformation is likely to occur due to the pulling force from. And the part attracted | sucked by the string-like members 7 and 8 in 1 A of absorbent articles is a part outside the range which substantially follows the length direction of the lead-out holes 21 and 22, ie, the both ends of the cylindrical parts 5 and 6. These are the portions between the end portions of the cylindrical portions 5 and 6 in the outlet holes 21 and 22 up to the end portion closest to the end portions.
On the other hand, in the range along the length direction of the lead-out holes 21 and 22 in the absorbent article 1A, the tensile force of the string-like members 7 and 8 is difficult to act, so the amount of deformation is less than the portion outside the range. small.
Therefore, the size of the absorbent article 1A after folding is such that the deformation amount of the absorbent article 1A is small when the string-like members 7 and 8 are pulled, that is, the outlet holes 21 and 22 of the absorbent article 1A. Since the range along the length direction has a great influence, the size after folding tends to be greatly influenced by the length of the lead-out holes 21 and 22 in the length direction.

  Therefore, in this embodiment, the length in the length direction of the lead-out holes 21 and 22 is made smaller than the length in the length direction of the base end portions of the wing portions 12 and 13, and the length from the user. When the amount of blood is relatively small, the entire absorbent article 1A can be folded as compactly as possible.

Furthermore, the reason why the lead-out holes 21 and 22 have the shape of a long hole having a predetermined size in the length direction of the cylindrical portions 5 and 6 is a range along the lead-out holes 21 and 22 in the absorber 4. This is for suppressing the occurrence of complicated deformation and contraction due to the pulling of the string-like members 7 and 8 in the inner portion.
As described above, when the string-like members 7 and 8 are pulled out from the lead-out holes 21 and 22, the portions that are drawn toward the lead-out holes 21 and 22 are deformed by the pulling force from the string-like members 7 and 8. It tends to occur. However, when the amount of deformation increases, the absorber 4 contracts greatly, so that the body fluid absorbed and held by the absorber 4 may be squeezed out. In particular, a portion that has absorbed a large amount of bodily fluid such as menstrual blood is highly likely, and depending on the amount of deformation of the absorbent body 4, the body fluid is squeezed out from the absorbent body 4 and the squeezed body fluid It is also conceivable that leaks from the liquid-permeable sheet side.
On the other hand, regarding the range along the length direction of the lead-out holes 21 and 22 in the absorber 4, even if the string-like members 7 and 8 are pulled out from the lead-out holes, the lengths of the lead-out holes 21 and 22 are the same. Since the amount of deformation is remarkably small compared with the portion outside the range, the possibility of squeezing out the body fluid absorbed and held by the absorber 4 is low.

Therefore, in this embodiment, the lead-out holes 21 and 22 are formed in a long hole shape having a predetermined size in the length direction of the cylindrical portions 5 and 6, so that a string-like member is formed in the absorber 4. A portion with a small deformation amount is formed at the time of pulling out from the lead-out holes 21 and 22 of 7, 8, and the deformation of the portion of the absorber 4 that absorbs a lot of body fluid is suppressed, so that the body fluid is squeezed out and leaked I try to prevent it.
In particular, in the case of this embodiment, the lead-out holes 21 and 22 are formed in a range along the base end side of the wing part 12.13 in the cylindrical parts 5 and 6. The deformation amount of the portion to which the body fluid from the user is most supplied is reliably suppressed, and the body fluid is stably prevented from being squeezed out.

By the way, the said absorber 4 becomes a structure which formed higher bending rigidity than the other area | region about the center area | region 17 among the three area | regions of the front area | region 18, the center area | region 17, and the back area | region 19. FIG.
Thus, the reason why the bending rigidity of the central region 17 is higher than that of the other regions 18 and 19 is that the central region 17 is moved when the absorbent article 1A is folded, whereby the central region 17 of the absorbent body 4 is moved. This is to prevent the body fluid that is absorbed and retained in the body from oozing out.
That is, when the string-like member is pulled out from the lead-out hole and pulled, if the central region that absorbs and retains more body fluid than other regions changes, the body fluid is squeezed out from the central region. In this embodiment, the bending rigidity of the central region 17 is set higher than that of the other regions to prevent the occurrence of kinking.

As a means for forming the bending rigidity of the central region 17 of the absorbent body 4 to be higher than that of the front region 18 and the rear region 19, for example, the basis weight of the fibers forming the central region is made larger than that of other regions. Any means can be used.
The bending rigidity of the central region 17 of the absorbent body 4 is preferably 1.5 times or more of the bending rigidity of the front region 18 and the rear region 19.

Further, the absorber 4 is provided with a bending inducement portion 23 extending in the width direction for inducing bending in the length direction of the absorber 4.
As described above, the bending attraction portion 23 is formed when the string-like members 7 and 8 are pulled, the absorbent article 1A, more specifically, both end sides in the length direction of the main body portion 11 are formed. The absorbent article 1A is easily and stably folded so as to cover the liquid-permeable sheet side so that the absorbent article 1A (main body portion 11) can be smoothly folded toward the center in the length direction. It is to make it.

Furthermore, in this embodiment, depending on the processing positions of the embosses 24a to 24d applied to the absorbent body 4 through the liquid permeable sheet 3, a portion having high rigidity and a portion having low rigidity are formed. The boundary between the lower part and the lower part is the main bending inducers 23 and 23.
In the case of this embodiment, as shown in FIG. 1, the absorber 4 is disposed as the emboss on the most front side and the back side (uppermost side and lower side in FIG. 1) of the absorber 4, respectively. In addition, substantially U-shaped embosses 24a and 24a are provided. Also, four linear embosses 24b respectively disposed closer to the center in the length direction of the absorber 4 than these embosses 24a and 24a, and the most central side in the length direction of the absorber 4 It has linear embosses 24c and 24c adjacent to the emboss 24b. Furthermore, substantially semicircular embosses 24d and 24d, which are located closer to the center in the length direction of the absorber 4 than the embosses 24a and 24a, respectively, are disposed at substantially the center in the width direction of the absorber 4. I have. In addition, all of these embossing 24a-24d is a groove-shaped thing which embossed both the liquid-permeable sheet 2 and the absorber 4 from this liquid-permeable sheet side, and each embossing 24a- 24d are independent of each other, and are arranged in a non-contact state with a certain distance from other embosses.
The spaces between the emboss 24d and the embosses 24a and 24b in the vicinity thereof are used as bending inducers 23 and 23, respectively.

Basically, the portions provided with the embosses 24a to 24d have high rigidity and are not easily bent, but the portions not provided with the embosses 24a to 24d have relatively low rigidity and are easily bent. For this reason, at the boundary between the embossed portion, particularly the portion between the embossed portion and the unembossed portion, bending tends to be attracted when an external force is applied.
Therefore, in this embodiment, the space regions where the embossing is not performed between the portions where the embossing 24a, 24b, and 24d adjacent to each other are performed are defined as the bending attraction portions 23 and 23, respectively. The body 4 can be bent in the length direction. As a result, when the absorbent article 1A is folded, the absorbent article 1A (strictly the main body 11) can be easily folded around these two bending inducers 23, 23. .

In addition, about the said embossing 24a, since the part (part by the side of the edge part nearest to the length direction of a main-body part) extended in the width direction of the absorber 4 becomes thin substantially in the width direction of the absorber 4. FIG. In this part, it is relatively easy to bend in the length direction of the main body 11. Therefore, in the case of inducing the bending of the absorber also in the portion other than the bending induction portions 23, 23 surrounded by the broken line in FIG. 1 (in this case, the end portion closest to the main body portion in the emboss 24a). There can be a folding invitation part.
The emboss 24d extends substantially in the width direction of the absorbent body 4 as a whole, and the thickness of the absorbent body 4 in the width direction is substantially small. Therefore, the emboss 24d itself serves as a bending inducer. obtain.
Furthermore, when the sanitary napkin as an absorbent article is sold, it is usually packaged individually in a state folded in three in the length direction and the liquid-permeable sheet side, In many cases, creases are already formed on the absorber. Since the portion where such folds are formed is easy to bend in the length direction of the main body portion, it can also serve as a bending inducement portion.

The absorbent article which has the said structure can be manufactured as follows, for example.
That is, as shown in FIG. 4, as a first step, first, a pair of webs 101 and 102 to be a pair of side sheets 9 and 10 are arranged along the conveying direction on the line. Then, while transporting the pair of webs 101 and 102, they approached the end portions in the width direction (hereinafter referred to as first end portions) 101a and 102a on the opposite side of the other webs 101 and 102, respectively. The portions are cut by slitters 103 and 104 at regular intervals in the length direction of the webs 101 and 102 to form linear slits 105 and 106 which become the lead-out holes 21 and 22.
As a second step, using the coater devices 107 and 108 for applying a hot-melt adhesive, the string-like shape is formed between the adjacent slits formed in the first step on the upper surface side of each of the webs 101 and 102. Hot melt adhesives 109 and 110 for fixing both ends of the members 7 and 8 are respectively applied. In the case of the one shown in FIG. 1, hot-melt adhesives 109 and 110 are applied almost in the middle between adjacent slits.
As a third step, a series of cords 111 and 112 to be the cord-like members 7 and 8 are formed on the hot melt adhesives 109 and 110 of the webs applied in the second step. By placing and bonding in the vertical direction, the positions of the strings 111 and 112 on the webs 101 and 102 are determined.

After determining the position of the string on each web, as a fourth step, as shown in FIGS. 4 and 5A, the slits 105 and 106 form the first end portions 101a and 102a of each web. At the position on the straight line, the webs 101 and 102 are folded back to the upper surface side toward the center in the width direction. At this time, the strings 111 and 112 are accommodated in the internal space of the hollow portion formed by folding back the first end portions of the webs 101 and 102.
As a fifth step, as shown in FIG. 4 and FIG. 5B, the width direction end (hereinafter referred to as the second end) 101b on the side of each of the webs 101, 102 facing the other web. 102b is folded upward toward the first end portions 101a and 102a of the same web. Thereby, the web is further laminated on the portion where the first end portions 101a and 102a are folded back, and the first end portion side of the webs 101 and 102 is wound into a cylindrical shape. As a result, on the lower surface side of each of the webs 101a and 102a on the transport line, cylindrical portions 5 and 6 (in a state before being cut into a product length) extending in the transport direction of the web are formed. The Rukoto.

In addition, after the said 1st-5th process, the process similar to manufacture of the sanitary napkin currently performed widely is implemented.
That is, as shown in FIG. 5B, the liquid permeation with the absorbent body 4 disposed on the upper surface between the webs 101 and 102 serving as the side sheet on which the cylindrical portion is formed on the transport line. A step of disposing the web 113 serving as the adhesive sheet in a state where both end portions in the width direction are placed on the webs 101 and 102 serving as the side seeds is performed.
In addition, about the web 113 and the absorber 4 used as the said liquid-permeable sheet, the embossing for forming embossing 24a-24d is performed before and behind this process, or simultaneously with this process.
Further, when the web 113 serving as a liquid permeable sheet is disposed on the webs 101 and 102 serving as side seeds, the web 113 serving as the liquid permeable sheet and the side seed are provided. The portions where the webs 101 and 102 overlap may be joined to each other by embossing by embossing. At this time, it is preferable that this embossing forms an emboss toward the conveyance direction of these webs so that the end part side of the absorber side of the width direction in the part used as the said cylindrical parts 5 and 6 may be followed.

Further, a web that becomes a liquid-impermeable sheet is placed on each of the webs 101 and 102 that become the side sheets, the web 113 that becomes a liquid-permeable sheet, and the absorber 4 on the conveyance line, and a hot-melt adhesive. A bonding step is performed through an adhesive such as (not shown). In addition, this affixing process is opposite to the surface on which the webs 101 and 102 serving as the side sheets, the web 113 serving as the liquid permeable sheet, and the absorbent body 4 are adhered to the web serving as the liquid impermeable sheet. It is performed after attaching in advance the pressure-sensitive adhesive sheet to be the pressure-sensitive adhesive members 14 to 15 on the side surface.
Thereafter, the webs 101 and 102 serving as the side sheets and the web 113 serving as the liquid permeable sheet and the web serving as the liquid impermeable sheet are mutually connected in a portion that substantially becomes the outer peripheral edge of the absorbent article 1A as a product. To seal part 20 (not shown). And the absorbent article 1A as a product will be formed through the process (not shown) cut | disconnected in the planar view shape of a desired product.

When the absorbent article 1A having the above configuration is folded small after use, as shown in FIG. 1, each tube is provided from each outlet hole 21, 22 provided in each of the pair of tubular portions 5, 6. The string-like members 7 and 8 in the shaped portions 5 and 6 are pulled out. Then, the pair of string-like members 7 and 8 are opposed to each other toward the outward direction in the width direction of the absorbent article 1A, more specifically, in the extending direction of the nearest wing portions 12 and 13. Pull each in the direction.
As shown in FIG. 6, when the pair of string-like members 7 and 8 are pulled, both end portions in the length direction of the main body portion 11 in the absorbent article 1 </ b> A are approximately at the center in the length direction of the main body portion 11. The absorber 4 is bent toward the liquid-permeable permeable sheet at the position of the bending attraction portion 23 while being drawn toward it.

Then, as shown in FIG. 7, when the pair of string-like members 7 and 8 are further pulled, portions on both ends of the main body 11, specifically, the front region 18 of the absorber 4 in the main body 11 is formed. The portion including the rear region 19 is folded so as to cover the liquid-permeable sheet side of the portion including the central region 17. In the case of what is shown in FIG. 7, the absorber 4 is folded in a state in which the portion including the front region 18 overlaps the portion including the rear region 19 of the absorber 4.
Finally, as shown in FIG. 8, the absorbent article 1 </ b> A is folded compactly as a whole in a state where the liquid-permeable permeable sheet side cannot be visually recognized at all.

  Thus, the absorbent article 1A having the above-described configuration has the pair of string-like members 7 and 8 inserted into the pair of cylindrical portions 5 and 6 extending in the length direction of the absorbent body 4 as lead-out holes 21. , 22, the absorbent article 1A as a whole can be folded simply by pulling it out of the tubular parts 5, 6 and pulling it. Thereby, the said absorbent article 1A can be folded without touching the part to which the bodily fluid of the said liquid-permeable sheet 3 adhered.

  Moreover, the pair of cylindrical portions 5 and 6 are disposed on the surface side of the liquid impermeable sheet 2 where the liquid permeable sheet 3 is disposed, and the pair of string-like members 7 and 8. , Each end portion of the absorbent article 1A is attracted toward the lead-out holes 21 and 22, and the attracted end portions are the surfaces of the absorbent article 1A on the liquid-permeable sheet side. Folded to cover up. Thereby, since the surface of the liquid permeable sheet side is not exposed when the absorbent article 1A is discarded, it is possible to prevent body fluid attached to the liquid permeable sheet 3 from attaching to other parts. Can be hygienic.

  The pair of string-like members 7 and 8 are fixed at both ends in the longitudinal direction of the cylindrical portions 5 and 6, respectively, and when the absorbent article 1A is folded, Portions other than both end portions of the string-like members 7 and 8 are pulled out to the outside of the cylindrical portions 5 and 6 through the lead-out holes 21 and 22, respectively. Therefore, the pull-out length of each of the string-like members 7 and 8 can be significantly reduced as compared with the conventional case, and the entire absorbent article can be easily folded in a short time.

  In particular, in the case of the absorbent material 1A of this embodiment, the lead-out holes 21 and 22 are located at a substantially central portion in the length direction of the main body 11, and the length of the string-like portions 7 and 8 is increased. The substantially central portion in the length direction is pulled out with a finger, and the portions on both ends in the length direction of the absorbent article 1A are drawn toward the outlet hole. Therefore, the length of the string-like members 7 and 8 to be pulled when folded is substantially half the length of the absorbent article 1A in the length direction. Compared to the case where the product is pulled by a length substantially equal to the product length of the absorbent article, it is very short. Thereby, there exists an advantage that the folding operation | work after use of 1 A of absorbent articles is easy.

In the first embodiment, the lead-out hole formed in the cylindrical portion is formed on the surface of the liquid-impermeable sheet on the liquid-permeable sheet side. In the absorbent article of the form, the arrangement position of the outlet hole is different from that of the first embodiment.
That is, FIGS. 9 to 12 show a second embodiment of the absorbent article according to the present invention. The absorbent article 1B of this embodiment has a pair of left and right cylindrical portions 5 and 6 which are liquid. The absorption along the widthwise side of the absorbent body 4 on the side of the impermeable sheet 2 where the liquid permeable sheet 3 is disposed (the upper surface side of the liquid impermeable sheet 2 in FIGS. 11 and 12). It is provided so as to extend in the length direction of the body 4.
On the other hand, the lead-out holes 25 and 26 for pulling out the string-like members 7 and 8 in the cylindrical portions 5 and 6 are opposite to the surface of the liquid-impermeable sheet 2 on which the liquid-permeable sheet 3 is disposed. It is provided on the side surface side, that is, the surface side in contact with the undergarment in the liquid-impermeable sheet 3 (the lower surface side of the liquid-impermeable sheet 2 in FIGS. 11 and 12).

The lead-out holes 25 and 26 pass through the circumferential surfaces of the cylindrical parts 5 and 6 and further through the liquid-impermeable sheet 2 in the thickness direction, and are string-like inserted into the cylindrical parts 5 and 6. The members 7 and 8 can be led out to the surface in contact with the underwear in the liquid-impermeable sheet 2.
In the case of this embodiment, each of the pair of cylindrical portions 5 and 6 is formed in a flat shape in which the cross-sectional shape in the width direction is long in the width direction of the absorbent article 1B. Reference numerals 25 and 26 are formed at positions offset from the end portions in the width direction of the respective cylindrical portions 5 and 6 on the side opposite to the absorber 4. Accordingly, the string-like members 7 and 8 are positioned in positions corresponding to the positions of the lead-out holes 25 and 26, that is, end portions in the width direction located in the cylindrical portions 5 and 6 on the side opposite to the absorber 4. At the positions deviated toward the part side, both end portions of the string-like members 7 and 8 are respectively fixed to both end portions of the tubular portions 5 and 6.

  The configuration other than the lead-out holes 25 and 26 is basically the same as that of the first embodiment, and the same reference numerals are given to omit the detailed description in order to achieve the same operational effects. .

The absorbent article having the above configuration can be folded by 1B, basically in the same manner as in the first embodiment, and the same effect can be obtained. In addition, since the lead-out holes 25 and 26 are disposed on the surface of the impermeable sheet 2 opposite to the surface on which the liquid-permeable sheet 3 is disposed, The operation of pulling out and pulling 8 can be performed on the surface opposite to the surface on which the liquid-permeable sheet 3 is disposed.
Therefore, since the absorbent article 1B can be folded without touching the liquid-permeable sheet side of the absorbent article 1B including the wing portions 12 and 13, there is an advantage that it is extremely hygienic.

  FIG. 13 shows a third embodiment of an absorbent article according to the present invention, and this absorbent article 1C has a main body 31, particularly a user, as compared to the first and second embodiments. The length and width of the portion corresponding to the rear side of the head are both formed large, and it is suitable for use when sleeping or when the amount of body fluid such as menstrual blood from the user is relatively large.

The lead-out holes 32 and 33 for leading the string-like members 7 and 8 to the outside of the pair of left and right cylindrical parts 5 and 6 are at least partially part of the wing parts 34 and 34 in the cylindrical parts 5 and 6. 35 is formed within a range along the base end side.
Further, each of the lead-out holes 32 and 33 is formed such that the length in the length direction is not less than the length in the direction along the length direction of the absorber 4 on the base end side of the wing portions 34 and 35. As a whole, it has a long hole shape.

In this embodiment, the wings 34 and 35 are disposed at positions closer to the front side of the main body 31 in plan view because the rear side of the main body 31 is longer.
Further, each of the lead-out holes 32 and 33 is in a position where both end portions in the length direction exceed the range along the base end side of the wing portions 34 and 35. Accordingly, each lead-out hole 32, 33 is located in a range in which the central portion in the length direction is along the base end side of the wing portion, and each lead-out hole 32, 33 has a length in the length direction of the wing portions 34, 35. It is longer than the length of the base end side in the length direction.

In addition, about the embossing with respect to the absorber 4, the planar view arc-shaped emboss 36a located in the foremost side (uppermost side in FIG. 13), and the planar view substantially U-shaped emboss 36b located in the approximate center of the length direction. And a substantially U-shaped emboss 36c in plan view located on the most rear side.
And, the space extending in the width direction of the absorbent body between the emboss 36a and the emboss 36b and the space extending in the width direction of the absorbent body between the emboss 36b and the emboss 36c are respectively bending inductions. Part 37. In the case of this embodiment, the absorber 4 is further located on the rear side of the absorber 4 in the emboss 36a itself that extends substantially in the width direction of the absorber 4 as a whole, and in the emboss 36b and the emboss 36c. Each of the portions extending in the width direction can also be a bending inducer. As in the first embodiment, the fold portion attached to the absorbent body 44 when the absorbent article 1C as a product is individually packaged in a state where the absorbent article 1C is folded in three can also serve as a bending inducer.

The reason why the lead-out holes 32 and 33 are formed to be longer than the length along the length direction of the absorber 4 on the base end side of the wing portions 34 and 35 is that when the absorbent article 1C is folded. This is to prevent the body fluid absorbed and held by the absorber 4 from being squeezed out and prevented from being leaked by suppressing over-compacting.
As already described, the size of the absorbent article after being folded is substantially affected by the length of the outlet hole in the length direction. In the case of an absorbent article such as this embodiment, which is used at bedtime or when the amount of bodily fluid such as menstrual blood from the user is relatively large, the absorbent body absorbs and retains a large amount of bodily fluid, which is too compact When folding is possible, the absorber is greatly deformed and contracted when folded. Then, when folded, the body fluid absorbed and held by the absorber is squeezed out, which may cause liquid leakage. In particular, the body fluid is highly likely to be squeezed out in a range along the wing part that is considered to be the part that absorbs and holds the body fluid most in the absorber.

Therefore, in the absorbent article 1C of this embodiment, the lead-out holes 32 and 33 are formed longer than the length in the direction along the length direction of the absorber 4 on the base end side of the wing portions 34 and 35. Then, the absorbent article 1C is compactly folded so that the body fluid absorbed and held in the absorbent body 4 is not squeezed out.
The lead-out holes 32 and 33 are at least partially within a range along the base end side of the wing portions 34 and 35 in the cylindrical portions 5 and 6, and are string-like in the vicinity of the wing portions 34 and 35. Since the members 7 and 8 can be pulled, the absorbent body 4 in the vicinity of the wing portions 35 and 35 containing a large amount of body fluid is not greatly deformed or contracted. Therefore, the body fluid can be more reliably prevented from being squeezed out from the absorber 4.

  The configurations other than the main body 31 and the wing portions 34 and 35, the lead-out holes 32 and 33, the embossings 36a to 36c, and the bending attraction portion 37 are basically the same as those in the first embodiment. In order to achieve the same operational effects, the same reference numerals are given and detailed description is omitted.

  Absorbent article 1C having the above-described configuration can be folded basically by the same method as in the first embodiment, and the same effect can be obtained. In addition to this, the lead-out holes 32 and 33 are formed longer than the length in the direction along the length direction of the absorber 4 on the base end side of the wing portions 34 and 35, so that the absorber is made more than usual. Even the absorbent article 1C configured to absorb and retain a large amount of body fluid can be folded compactly to such an extent that the body fluid absorbed and retained by the absorber 4 is not squeezed out.

  FIG. 14 shows a fourth embodiment of an absorbent article according to the present invention, and the absorbent article 1D of this embodiment differs from the first to third embodiments in the width direction. It does not have a wing part at both ends, and has a configuration including only a main body part.

  That is, the absorbent article 1D includes a liquid-impermeable sheet 42 formed in a substantially planar shape as the absorbent article 1D, and a liquid-permeable sheet disposed on one surface side of the liquid-impermeable sheet 42. Sheet 43, absorbent body 44 disposed between these liquid-impermeable sheet 42 and liquid-permeable sheet 43, and a part thereof covering both sides of the liquid-permeable sheet 43 in the width direction. And a pair of side seats 49, 50. Then, a pair of left and right cylindrical portions 45 and 46 for folding the absorbent article 1D are inserted into the surface of the liquid impermeable sheet 42 on which the liquid permeable sheet 43 is disposed, and inserted into the respective cylindrical portions. The string-like members 47 and 48 are provided.

Unlike the first to third embodiments, the liquid-impermeable sheet 42 and the pair of side sheets 49 and 50 do not have a portion corresponding to the wing portion, and therefore absorb the absorption. Both side portions in the width direction of the property article 1D are formed in a substantially linear shape in plan view.
Further, regarding the embossing with respect to the absorber 44, the arcuate embossing 53a and 53a, which are located on the most front side and the rear side (the uppermost side and the lower side in FIG. 14), respectively, and the end portions thereof are the embossing 53a and 53a. The embosses 53b and 53b that are adjacent to each other and extend in the length direction on both sides in the width direction in the space between the pair of cylindrical portions 45 and 46, and are located on the center side in the length direction of the embosses 53a and 53a. In addition, embosses 53c and 53c having an arc shape in a plan view smaller in diameter than the embosses 53a and 53a are formed.
A space extending in the width direction of the absorbent body 44 between the embossed 53a and the embossed 53c is mainly used as the bending inducer 54. In the case of this embodiment, each of the embossed 53a and the embossed 53c that substantially extend in the width direction of the absorber 44 can also be a bending inducer. As in the first embodiment, the fold portion attached to the absorbent body 44 when the absorbent article 1D as a product is individually packaged in a state where the absorbent article 1D is folded into three can also serve as a bending inducer.

On the peripheral surfaces of the cylindrical portions 45 and 46, lead-out holes 51 and 52 for pulling out the inserted string-like members 47 and 48 are provided, respectively. It is provided at a substantially central portion in the length direction of the article 1D. Each of these lead-out holes 51 and 52 is formed in a long hole shape extending in the length direction of the cylindrical portions 45 and 46.
Note that the lengths of these lead-out holes 51 and 52 are set in advance in accordance with the amount of body fluid such as menstrual blood from the user, for example, and the amount of body fluid supplied from the user is large. Is set larger, and conversely when it is less, it can be set smaller.

  According to the absorbent article 1D having the above-described configuration, basically the same effect as that of the first embodiment can be obtained, and even if it does not have a wing portion, there is no problem at all in a simple and short time. And it can be folded compactly.

  In the first to fourth embodiments, the pair of cylindrical portions 5, 6, 45, 46 are on the surface side of the impermeable sheets 2, 42 where the liquid permeable sheets 3, 43 are disposed. Although disposed, the pair of cylindrical portions may be disposed on the surface of the impermeable sheet opposite to the surface on which the liquid permeable sheet is disposed. Further, in this case, the lead-out holes of the pair of cylindrical portions are provided on the surface side of the impermeable sheet opposite to the surface on which the liquid permeable sheet is disposed, that is, each tubular portion is disposed. It is preferable to provide it on the side that is provided.

  In the third and fourth embodiments, the respective lead-out holes 32, 33, 51, 52 provided in the pair of cylindrical portions 5, 6, 45, 46 are liquid-impermeable. The liquid permeable sheets 3 and 43 in the sheets 2 and 42 are disposed on the surface side where the liquid permeable sheets 3 and 43 are disposed, but each lead-out hole has the liquid in the impermeable sheet as in the second embodiment. You may arrange | position at the surface side on the opposite side to the surface where the permeable sheet was arrange | positioned.

  In the first to third embodiments, at least a part of the lead-out holes 21, 22, 25, 26, 32, 33 are wing parts 12, 13, 34, 35 in the cylindrical parts 5, 6. However, it is not always necessary to set the position of the lead-out hole in association with the position of the wing portion. However, when the absorbent article is folded, the lead-out hole is not disposed at a position where a large amount of body fluid is contained in the absorbent body so that a large deformation occurs. However, it is preferable that the body fluid absorbed and retained is not squeezed out.

  In the case of the first, second, and fourth embodiments, the lead-out holes 21, 22, 25, 26, 51, and 52 are substantially located at substantially the center in the length direction of the absorbent article. However, the position of each lead-out hole does not necessarily have to be a substantially central portion in the length direction of the absorbent article, and can be provided at an arbitrary position. However, when the lead-out hole is provided at a position shifted from the substantially central portion in the length direction of the absorbent article, there is a possibility that the length of pulling out the string-like member from the lead-out hole when the absorbent article is completely folded may be extended. Therefore, it is important to determine the arrangement position at the position of the lead-out hole in consideration of the convenience at the time of folding.

  In the second and third embodiments, the absorbent articles 1B and 1C include wing portions 12, 13, 34, and 35 that extend outward from the respective side portions on both side portions in the width direction. However, the wing portion is not necessarily provided.

  In the first to fourth embodiments, the absorbers 4 and 44 are configured such that the front region 18, the central region 17, and the rear region 19 are continuously provided in the length direction. Among these regions, the central region 17 is formed with higher bending rigidity than the other regions 18 and 19. However, in the case where the bending rigidity of the entire absorbent body is high and the central area does not change when the absorbent article is folded, the bending rigidity of the central area does not need to be particularly high.

  Further, in the first to fourth embodiments, the absorbers 4 and 44 are bent inducing portions 23 extending in the width direction that induce bending of the absorbers 4 and 44 in the length direction. However, when the absorbent article can be folded smoothly, it is not always necessary to provide the bending inducer.

Furthermore, in the said 1st-4th embodiment, the bending induction parts 23, 37, and 54 emboss both the liquid-permeable sheets 2 and 42 and the absorbers 4 and 44, and an emboss is provided. The bending of the absorber is induced by utilizing the difference in rigidity between the part that is provided and the part that is not provided.
However, even if the bending attraction part performs embossing only on the absorber and uses the difference in rigidity between the part where the embossing is provided and the part where the embossing is not provided, Good. Alternatively, a region where the basis weight of the absorbent body is large and a small region are continuously arranged in the length direction of the absorbent body, thereby arranging a portion having a large rigidity and a small portion side by side in the absorbent body. By having made it the structure made into, it can be set as the structure which can attract | suck the bending of an absorber using the difference in the rigidity.

  Furthermore, in the case of the said 1st-4th embodiment, although the absorbent articles 1A-1D become a flat shape as a whole, the surface side by which the liquid-permeable sheet in the liquid-impermeable sheet was arrange | positioned In addition, a structure in which a leak-proof wall for preventing a side leak of body fluid extending in the length direction of the absorbent body along both sides in the width direction of the absorbent body may be provided. In this case, it is preferable that the cylindrical portion is provided along a wall surface of the leak-proof wall opposite to the absorber.

Further, in the first to fourth embodiments, the pair of cylindrical portions 5, 6, 45, 46 are part of the side sheets 9, 10, 49, 50 using the side sheets 9, 10, 49, 50. 49 and 50 are integrally formed, but the pair of cylindrical portions may be formed separately from the side seats.
In addition, when the pair of cylindrical portions are formed of side sheets, when the side sheets have hydrophobicity or water repellency, body fluids in which the pair of cylindrical portions and further the string-like members are excreted from the user Can prevent getting wet. Therefore, in this case, when the absorbent article is folded after use, there is an advantage that the string-like member can be operated without getting hands dirty.

Further, in the first to fourth embodiments, the pair of cylindrical portions 5, 6, 45, 46 are formed by making a part of the side seats 9, 10, 49, 50 cylindrical. For example, as shown in FIG. 15, a pair of cylindrical portions may be formed using a part of the liquid-permeable sheet.
The absorbent article 1E shown in FIG. 15 is formed in a cylindrical shape at both ends in the width direction of the liquid permeable sheet 63 to form a pair of cylindrical portions 65, 66. Derivation holes 71 and 72 for leading the string-like members 7 and 8 to the outside of the cylindrical portions 65 and 66 are provided. Specifically, in the case shown in FIG. 15, both end portions in the width direction of the liquid permeable sheet 63 are bent downward to form a cylindrical shape, and the end portion side on the absorber 4 side in the width direction in the bent portion. Are embossed together with the side sheets 69 and 70, and the end portions thereof are joined into the joining portions 73 and 74 that are joined in the length direction of the absorbent article. 66 is formed.
At this time, the joints 73 and 74 are made of an adhesive using a hot-melt adhesive or the like as long as the bent portions at the both ends in the width direction of the liquid-permeable sheet 63 can be reliably joined. Bonding may be used.
In addition, in the absorbent article shown in FIG. 15, the configuration other than the point that the pair of cylindrical portions are formed using both end portions of the liquid-permeable sheet instead of the side sheet is the same as that of the first embodiment. In order to achieve the same operational effects with the same configuration, the same reference numerals as those in the first embodiment are given, and detailed description thereof is omitted.

  In the first embodiment, the string-like members 7 and 8 are fixed to the cylindrical portions 5 and 6 with the hot-melt adhesive with respect to fixing the both ends of the string-like members 7 and 8 to the cylindrical portions 5 and 6. An example is described in which fixing is performed using two methods of direct fixing by bonding and fixing by the seal portion 20. However, the fixing of the both ends of the string-like member to the cylindrical portion can be fixed by any single method as long as both ends of the string-like member can be firmly fixed to the cylindrical portion, Or the fixation which used arbitrary three or more methods together may be sufficient.

  In the said 1st-4th embodiment, although the case where the sanitary napkin was used as an absorbent article was demonstrated, as an absorbent article of this invention, in addition to the sanitary napkin, a sheet of a cage Or disposable paper diapers or incontinence pads.

1A-1E Absorbent article 2,42 Liquid-impermeable sheet 3,43,63 Liquid-permeable sheet 4,44 Absorber 5,6,45,46,65,66 Cylindrical part 7,8,47,48 String Wings 17 Central region 18 Front region 19 Rear region 21, 22, 25, 26, 32, 33, 51, 52, 71, 72 Deriving holes 23, 37, 54 Bent-inducing portion

Claims (8)

A liquid-impermeable sheet, a liquid-permeable sheet disposed on one side of the liquid-impermeable sheet, and a one-way disposed between the liquid-impermeable sheet and the liquid-permeable sheet An absorbent article with a long absorbent body,
A pair of cylindrical portions that extend in the length direction of the absorber along both sides in the width direction of the absorber, and a length direction of the cylindrical portion respectively inserted into the pair of cylindrical portions A pair of string members extending,
Both ends of the pair of string-like members are fixed to both ends in the length direction of the inserted cylindrical part, and portions other than both ends of each string-like member are the cylinders. An absorbent article that can be pulled out to the outside of the cylindrical portion through a lead-out hole provided in the peripheral surface of the cylindrical portion.   The absorbent article according to claim 1, wherein the tubular portion is disposed on a surface side of the liquid impermeable sheet where the liquid permeable sheet is disposed.   The absorbent article according to claim 1, wherein the lead-out hole is disposed on a surface side of the liquid-impermeable sheet opposite to a surface on which the liquid-permeable sheet is disposed. .   The absorbent article includes wing portions that extend outward from the respective side portions and are fixed to clothing during use on both side portions in the width direction, and at least a part of the lead-out hole is the tube. The absorbent article according to any one of claims 1 to 3, wherein the absorbent article is formed in a range along the base end side of the wing portion in the shape portion.   The absorbent article according to claim 4, wherein the lead-out hole has a length in a length direction that is greater than or equal to a length in a direction along a length direction of the absorber on a base end side of the wing portion. .   The absorbent article according to claim 4, wherein the lead-out hole has a length in a length direction that is less than a length in a direction along the length direction of the absorber on the base end side of the wing portion. .   In the absorber, the front region, the central region, and the rear region are continuously provided in the length direction, and the central region of these regions is formed to have higher bending rigidity than the other regions. The absorptive article according to any one of claims 1 to 6.   The absorptivity according to any one of claims 1 to 7, wherein the absorber has a bending attraction portion extending in a width direction, which induces bending in the length direction of the absorber. Goods.

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